Beginnings of the estimation of $m$ unknown quantities from $n$ emipirical equations (where $n > m$), taking account of the possibility of errors in the observations (later supplanted by the method of least squares)

First graph of isotherms, showing mean temperature around the world by latitude and longitude. Recognizing that temperature depends more on latitude and altitude, a subscripted graph shows the direct relation of temperature on these two variables

Comprehensive review of all available statistical graphics presented to the Statistical Society of London, classified as figures, maps, and solids (3D), perhaps the first mature attempt at a systematic classification of graphical forms

Mediaitems:
Link to Levasseur's e-texts, Hi-res scan of Levasseur's La Statistique Graphique (15.6M), Four type of graphs illustrated by Levasseur, Area diagram comparing populations of countries to their colonies, Circle diagram of Infant mortality by month in Brussels, Population density in France in 1866

Description of a memex, an associative information retrieval system which would help someone find information based in association and context rather than strict categorical indexing; conceptual creation of "hyperlink'' and the ''World Wide Web''

Mediaitems:
Bush biography (with links and images), As We May Think (e-text):

This web version is dedicated to Arthur H. Robinson (1915-2004), who inspired and encouraged our interest; to Antoine de Falguerolles, who initiated it, and to les Chevaliers des Album de Statistique Graphique, who supported it with interest, enthusiasm, and resources. In particular, Gilles Palsky, Antoine de Falguerolles, Antony Unwin and Ruddy Ostermann contributed important images and background information. This work is supported by the National Sciences and Engineering Research Council of Canada, Grant OGP0138748.

Citations: References to information or images obtained from this web site should be cited as follows:
Friendly, M. & Denis, D. J. (2001).
Milestones in the history of thematic cartography, statistical graphics, and data visualization.
Web document, http://www.datavis.ca/milestones/. Accessed: